diff --git a/platform/usageView/src/com/intellij/usages/ChunkExtractor.java b/platform/usageView/src/com/intellij/usages/ChunkExtractor.java
index ca9ec6d39b1c..6aa2f991828f 100644
--- a/platform/usageView/src/com/intellij/usages/ChunkExtractor.java
+++ b/platform/usageView/src/com/intellij/usages/ChunkExtractor.java
@@ -93,7 +93,7 @@ public class ChunkExtractor {
     }
   };
 
-  public static TextChunk[] extractChunks(PsiFile file, UsageInfo2UsageAdapter usageAdapter) {
+  public static TextChunk[] extractChunks(@NotNull PsiFile file, UsageInfo2UsageAdapter usageAdapter) {
     return ourExtractors.get().getValue().get(file).extractChunks(usageAdapter);
   }
 
diff --git a/platform/usageView/src/com/intellij/usages/UsageInfo2UsageAdapter.java b/platform/usageView/src/com/intellij/usages/UsageInfo2UsageAdapter.java
index 91b0b32cee4b..1849cd9c696f 100644
--- a/platform/usageView/src/com/intellij/usages/UsageInfo2UsageAdapter.java
+++ b/platform/usageView/src/com/intellij/usages/UsageInfo2UsageAdapter.java
@@ -120,7 +120,8 @@ public class UsageInfo2UsageAdapter implements UsageInModule,
   }
 
   private TextChunk[] initChunks() {
-    TextChunk[] chunks = ChunkExtractor.extractChunks(getPsiFile(), this);
+    PsiFile file = getPsiFile();
+    TextChunk[] chunks = file == null ? TextChunk.EMPTY_ARRAY : ChunkExtractor.extractChunks(file, this);
     myTextChunks = new SoftReference<TextChunk[]>(chunks);
     return chunks;
   }